Pilot Exam Coach

US Private Pilot

Switch to Canada PSTAR
Aircraft systems and instrumentsQuestion 634 of 934

How can a pilot avoid excessive cylinder head temperatures?

  1. Increase airspeed, enrich the mixture, or reduce power
  2. Decrease airspeed, lean the mixture, or increase power
  3. Lean the mixture and climb at a steep angle
  4. Close the cowl flaps and reduce airspeed
Show answer

Correct answer: Increase airspeed, enrich the mixture, or reduce power

Any of these actions helps to reduce the engine temperature.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 7: Aircraft Systems — Engine Cooling Systems, page 178

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026